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"After almost four months of operations, physiotherapy and loads of moisturisation, I'm happy to say that today, my stay in hospital is finally coming to an end."

Milbank credit his "amazing team of doctors, nurses, physios and occupational therapists" for his miraculous recovery.

"But most of all I owe it to my family, who have been with me every step of the way, assisting me with my cares and my every need. I also have to thank my friends, for always visiting me and keeping me sane during this long, hard time."

"To everyone In New Zealand and all around the world who have been showing me their ongoing love and support, I cannot thank you enough," Milbank wrote.

"You have all given me the strength and encouragement I needed, to keep working hard, and striving for the best possible outcome.

"I still have a very long road ahead in terms of my rehabilitation and recovery, but with the help of my family and friends as well as worldwide support I know I will get there one day.

"It is a shame to be going out of almost four months isolation, straight back in to isolation, but it is just good to be home."

On March 11 Milbank revealed he was allowed day leave from hospital.

"After more than three long months in hospital things are finally starting to look up as my medical team have cleared me for day leave," he said, also on Instagram, posting a picture of himself with his dog.

"The first thing on my list was to go and see this little cutie who hasn't seen me in a whopping 1.8 dog years.

"Such an awesome feeling to be back out in the real world breathing in some fresh air.

"I'd like to say a huge thank you to everyone who has helped me get to this point, I couldn't have done it without you all."